I can suffer you can suffer he can suffer we can suffer you can suffer they can suffer
Forma con V-ing
I can be suffering you can be suffering he can be suffering we can be suffering you can be suffering they can be suffering
Perfecto
I can have suffered you can have suffered he can have suffered we can have suffered you can have suffered they can have suffered
Perfecto con V-ing
I can have been suffering you can have been suffering he can have been suffering we can have been suffering you can have been suffering they can have been suffering
Negación
Forma simple
I can't suffer you can't suffer he can't suffer we can't suffer you can't suffer they can't suffer
Forma con V-ing
I can't be suffering you can't be suffering he can't be suffering we can't be suffering you can't be suffering they can't be suffering
Perfecto
I can't have suffered you can't have suffered he can't have suffered we can't have suffered you can't have suffered they can't have suffered
Perfecto con V-ing
I can't have been suffering you can't have been suffering he can't have been suffering we can't have been suffering you can't have been suffering they can't have been suffering
Forma interrogativa
Forma simple
can I suffer? can you suffer? can he suffer? can we suffer? can you suffer? can they suffer?
Forma con V-ing
can I be suffering? can you be suffering? can he be suffering? can we be suffering? can you be suffering? can they be suffering?
Perfecto
can I have suffered? can you have suffered? can he have suffered? can we have suffered? can you have suffered? can they have suffered?
Perfecto con V-ing
can I have been suffering? can you have been suffering? can he have been suffering? can we have been suffering? can you have been suffering? can they have been suffering?
Forma interro-negativa
Forma simple
can't I suffer? can't you suffer? can't he suffer? can't we suffer? can't you suffer? can't they suffer?
Forma con V-ing
can't I be suffering? can't you be suffering? can't he be suffering? can't we be suffering? can't you be suffering? can't they be suffering?
Perfecto
can't I have suffered? can't you have suffered? can't he have suffered? can't we have suffered? can't you have suffered? can't they have suffered?
Perfecto con V-ing
can't I have been suffering? can't you have been suffering? can't he have been suffering? can't we have been suffering? can't you have been suffering? can't they have been suffering?